Answer / sateesh

for higher frequencies we can use MOsfet
for lower frequencies we can use igbt and rating of igbts r
higer compared to MOSFETs

Answer / gopaul

mos controlled thyristor (mct)

Answer / fat-s0

It depends on the application. A good power electronics
book usually shows a good image of the power and frequency
range in which most switches will find optimal use.

Answer / dinesh kumar

Silicon Controlled Rectifier (scr)

why induction motor having low power factor at starting time and high at full load.

6 Answers   BARC, HPB,

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what is v/f control in VFD?

0 Answers  

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what is the difference between concentrated winding and Distributed winding in motor?

7 Answers   BSL, Infosys, TCS,

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In LRS how much water PH value maintain for good operation of motor?

3 Answers  

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why neutral should connect to earth in delta-star type transformer

4 Answers  

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How to decide cable tray size?

0 Answers  

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what is the ambient temperature of transformer oil & winding?

2 Answers   Reddy Labs,

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there are a transformer and a motor. both are connected to 3phase, 415 Volt, 50Hz power supply. Both are working with induction principles. Then, why, motor is rotating and transformer is not rotating.

8 Answers  

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what are the disadvantages of low power factor

0 Answers   HMK,

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I want d.g.set our company

0 Answers  

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1,Building containing 25 flats how much Amp 3 pole MCCB are required? 2, For the safey of each flat how many Amp RCCB can install -loaded with A/C

1 Answers   L&T,

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can we use HT cables for LT power supply ?

1 Answers  

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